A41W Enclosed Spring Low Lift Flange Safety Valve, Hard Seal Relief Valve For Water & Oil, Overpressure Protection Safety Valve For Storage Tank & Pressure Vessel

A41W is spring low-lift enclosed safety valve with flanged connection. Enclosed structure prevents medium leakage, suitable for air, gas and other gaseous media. Low lift design with stable discharge performance. Suffix C for WCB cast steel, P for 304 stainless steel. When system pressure exceeds preset popping pressure, valve opens to release pressure and automatically closes once pressure returns to normal, protecting pressure vessels, gas tanks and high-pressure pipelines. Flange standards GB, HG, ASME B16.5 available, set pressure customizable.